diff --git a/.travis.yml b/.travis.yml
index 19251d6155..b48927b4ea 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -31,6 +31,11 @@ matrix:
     - php: nightly
   fast_finish: true
 
+addons:
+  apt:
+    sources:
+      - node
+
 services:
   - redis-server
 
@@ -46,6 +51,7 @@ script:
   - travis/check-sami-parse-errors.sh $DB $TRAVIS_PHP_VERSION $NOTESTS
   - travis/check-image-icc-profiles.sh $DB $TRAVIS_PHP_VERSION $NOTESTS
   - travis/check-executable-files.sh $DB $TRAVIS_PHP_VERSION $NOTESTS ./
+  - travis/check-stylesheet.sh $DB $TRAVIS_PHP_VERSION $NOTESTS
   - sh -c "if [ '$SLOWTESTS' != '1' -a '$DB' = 'mysqli' ]; then phpBB/vendor/bin/phpunit tests/lint_test.php; fi"
   - sh -c "if [ '$NOTESTS' != '1' -a '$SLOWTESTS' != '1' ]; then phpBB/vendor/bin/phpunit --configuration travis/phpunit-$DB-travis.xml; fi"
   - sh -c "if [ '$SLOWTESTS' = '1' ]; then phpBB/vendor/bin/phpunit --configuration travis/phpunit-$DB-travis.xml --group slow; fi"
diff --git a/travis/check-stylesheet.sh b/travis/check-stylesheet.sh
new file mode 100755
index 0000000000..aa1b4d7a6d
--- /dev/null
+++ b/travis/check-stylesheet.sh
@@ -0,0 +1,24 @@
+#!/bin/bash
+#
+# This file is part of the phpBB Forum Software package.
+#
+# @copyright (c) phpBB Limited <https://www.phpbb.com>
+# @license GNU General Public License, version 2 (GPL-2.0)
+#
+# For full copyright and license information, please see
+# the docs/CREDITS.txt file.
+#
+set -e
+set -x
+
+DB=$1
+TRAVIS_PHP_VERSION=$2
+NOTESTS=$3
+
+if [ "$NOTESTS" == '1' ]
+then
+	cd phpBB
+	npm install -g
+	npm install
+	stylelint --config ../.stylelintrc "styles/prosilver/theme/*.css"
+fi